diff options
| author |   Yang Shi <shy828301@gmail.com> | 2022-06-16 10:48:37 -0700 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-07-17 17:14:33 -0700 |
| commit | 9fec51689ff60d9766b38051a0b1692f93d95364 (patch) | |
| tree | 3a49d1f60fa549d41904e4be210d351391d56502 /include/linux/khugepaged.h | |
| parent | mm: khugepaged: better comments for anon vma check in hugepage_vma_revalidate (diff) | |
| download | wireguard-linux-9fec51689ff60d9766b38051a0b1692f93d95364.tar.xz wireguard-linux-9fec51689ff60d9766b38051a0b1692f93d95364.zip | |
mm: thp: kill transparent_hugepage_active()
The transparent_hugepage_active() was introduced to show THP eligibility
bit in smaps in proc, smaps is the only user. But it actually does the
similar check as hugepage_vma_check() which is used by khugepaged. We
definitely don't have to maintain two similar checks, so kill
transparent_hugepage_active().
This patch also fixed the wrong behavior for VM_NO_KHUGEPAGED vmas.
Also move hugepage_vma_check() to huge_memory.c and huge_mm.h since it
is not only for khugepaged anymore.
[akpm@linux-foundation.org: check vma->vm_mm, per Zach]
[akpm@linux-foundation.org: add comment to vdso check]
Link: https://lkml.kernel.org/r/20220616174840.1202070-5-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Reviewed-by: Zach O'Keefe <zokeefe@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/khugepaged.h')
| -rw-r--r-- | include/linux/khugepaged.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h index 31ca8a7f78f4..ea5fd4c398f7 100644 --- a/include/linux/khugepaged.h +++ b/include/linux/khugepaged.h @@ -10,8 +10,6 @@ extern struct attribute_group khugepaged_attr_group; extern int khugepaged_init(void); extern void khugepaged_destroy(void); extern int start_stop_khugepaged(void); -extern bool hugepage_vma_check(struct vm_area_struct *vma, - unsigned long vm_flags); extern void __khugepaged_enter(struct mm_struct *mm); extern void __khugepaged_exit(struct mm_struct *mm); extern void khugepaged_enter_vma(struct vm_area_struct *vma, |